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Aircraft oil

Discussion in 'Performance' started by Bubba_BigDog, Nov 30, 2016.

  1. Bubba_BigDog

    Bubba_BigDog Redneck

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    Anyone ever hear or use aircraft oil that's intended for air-cooled engines instead of standard oil generally intended for water-cooled engines?
     
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  2. FrankBDPS

    FrankBDPS Well-Known Member

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    Why? I think the synthetic oil is expensive enough. I would think anything that is aircraft approved would be pricey as hell.
     
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  3. BWG56

    BWG56 Guru

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    Mobil 1, 20-50w is intended for V-twins, not vehicles
     
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  4. cdogg556

    cdogg556 Guru

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    Yep, :oldsmile: same here, :agree: Mobil 1 is da chit! :old2:
     
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  5. dentdude36

    dentdude36 Guru

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    :yesnod:
     
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  6. HMAN

    HMAN Well-Known Member

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    I would think all the extra additives would not bode well for our land based Dogs? Aircraft crap has tons of overkill built in for obvious reasons. I know our hydraulic oil used in our landing gear has lots of "extras" in it for high altitudes n such. However, AVGAS is the shit!! Jm .02
     
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  7. Viking

    Viking Biker

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    Not on my Dog cause it is not needed, but on my boat, yes. I have dug out the mil spec and found marine oils that are identical to aircraft oils. Needless to say I do not pay too much for aircraft oils since I work in the industry, but West Marine and others charge you an arm and a leg for certain fluids. If you have access to get them and the mil specks are compatible, why not?
     
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  8. Dawggydawg

    Dawggydawg Member

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    Don't do it unless you want your S&S to die a quick death. I've been a licensed A&P mechanic for over 30 years. Aircraft reciprocating engines are for the most part air cooled, the oil used in them are vastly different than a motorcycle. They use a mineral based oil for break-in and then go to an AD oil (Ashless Dispersant). Aviation oils lack the friction modifiers required by motorcycle engines. They also never see the heat created by a typical air cooled motorcycle engine. Aircraft engine can also control their CHT and or EGT somewhat by having a manual mixture control and through the use of engine cowl flaps. But hey, if you want to try it, it's a free country. Just my 2 cents.


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  9. Th3InfamousI

    Supporting Member

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    Yes! Whatever he said....ha

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  10. liferider

    liferider Guru

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    Stay with my Royal Purple 20/50
     
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  11. BWG56

    BWG56 Guru

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    I couldn't have said it better, well done :old2::whoop::oldlaugh:
     
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  12. EMILIO

    EMILIO Member

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    CHT ( cylinder head temp) EGT (exhaust gas temp), im a licensed A&P too, CheersDawggydawg
     
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  13. Th3InfamousI

    Supporting Member

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    After a few beers I bet you could have

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  14. BWG56

    BWG56 Guru

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    :oldhardlaugh::oldhardlaugh:Fur sur :oldhardlaugh:
     
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  15. bdm7250

    bdm7250 Guru
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    :old2::old2: Yup that's the stuff, use Royal Purple in everything...
     
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  16. badyellowvette

    badyellowvette Active Member

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    I ran aircraft oil in my Sportster in the 80's. Bought a case somewhere, it was even in the old metal cans. Some old biker guy recommended using it, never seem to hurt it any. Don't think I would try it in my K9.
     
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